/* =====================================================
   COPERTURE CRIN SRL - Industrial Construction Theme
   A bold, copper-and-slate aesthetic for roofing experts
   ===================================================== */

/* CSS Custom Properties */
:root {
    /* Primary Palette - Copper & Metal */
    --copper: #b87333;
    --copper-light: #d4956a;
    --copper-dark: #8b5a2b;
    --bronze: #cd7f32;
    
    /* Neutral Slate Tones */
    --slate-900: #1a1d21;
    --slate-800: #252a30;
    --slate-700: #363d47;
    --slate-600: #4a5568;
    --slate-500: #64748b;
    --slate-400: #94a3b8;
    --slate-300: #cbd5e1;
    --slate-200: #e2e8f0;
    --slate-100: #f1f5f9;
    --slate-50: #f8fafc;
    
    /* Accent Colors */
    --white: #ffffff;
    --success: #22c55e;
    --warning: #f59e0b;
    
    /* Typography - with fallback fonts */
    --font-display: 'Bebas Neue', Impact, 'Arial Black', sans-serif;
    --font-body: 'Barlow', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    
    /* Spacing */
    --section-padding: clamp(4rem, 10vw, 8rem);
    --container-max: 1280px;
    --container-padding: clamp(1.5rem, 5vw, 3rem);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.2);
    --shadow-copper: 0 8px 30px rgba(184,115,51,0.3);
}

/* Reset & Base - Cross-browser compatible */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--slate-800);
    background-color: var(--slate-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    min-height: 100vh;
    /* Prevent iOS zoom on input focus */
    touch-action: manipulation;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* =====================================================
   NAVIGATION
   ===================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    background: transparent;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(26, 29, 33, 0.95);
    backdrop-filter: blur(10px);
    padding: 0.75rem 0;
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 0.05em;
    color: var(--white);
}

.logo-icon {
    font-size: 1.75rem;
    color: var(--copper);
}

.logo-accent {
    color: var(--copper);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-menu a {
    font-weight: 500;
    color: var(--slate-300);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--copper);
    transition: width var(--transition-normal);
}

.nav-menu a:hover {
    color: var(--white);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 0.6rem 1.5rem !important;
    background: var(--copper);
    color: var(--white) !important;
    border-radius: 4px;
    transition: all var(--transition-fast) !important;
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    background: var(--copper-light);
    transform: translateY(-2px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: all var(--transition-fast);
}

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: var(--slate-900);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(135deg, var(--slate-900) 0%, transparent 50%),
        linear-gradient(225deg, rgba(184,115,51,0.15) 0%, transparent 50%),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 2px,
            rgba(255,255,255,0.02) 2px,
            rgba(255,255,255,0.02) 4px
        );
}

.hero-pattern::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(184,115,51,0.1) 0%, transparent 60%);
    transform: rotate(-15deg);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    padding-top: 6rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: rgba(184,115,51,0.2);
    border: 1px solid rgba(184,115,51,0.4);
    border-radius: 50px;
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease forwards;
}

.hero-badge span {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--copper-light);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3.5rem, 12vw, 8rem);
    line-height: 0.9;
    letter-spacing: 0.02em;
    margin-bottom: 1.5rem;
}

.title-line {
    display: block;
    color: var(--white);
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
    transform: translateY(40px);
}

.title-line:nth-child(1) { animation-delay: 0.1s; }
.title-line:nth-child(2) { animation-delay: 0.2s; }
.title-line:nth-child(3) { animation-delay: 0.3s; }

.title-line.accent {
    color: var(--copper);
    -webkit-text-stroke: 0;
}

.hero-subtitle {
    max-width: 540px;
    font-size: 1.125rem;
    color: var(--slate-400);
    margin-bottom: 2.5rem;
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
    transform: translateY(40px);
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 4rem;
    animation: fadeInUp 0.8s ease 0.5s forwards;
    opacity: 0;
    transform: translateY(40px);
}

.hero-stats {
    display: flex;
    gap: 3rem;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.6s forwards;
    opacity: 0;
    transform: translateY(40px);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    color: var(--copper);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--slate-500);
    margin-top: 0.25rem;
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    color: var(--slate-500);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    animation: fadeIn 1s ease 1s forwards;
    opacity: 0;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--copper), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: var(--copper);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--copper-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-copper);
}

.btn-whatsapp {
    background: #25D366;
    color: var(--white);
}

.btn-whatsapp:hover {
    background: #20bd5a;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--slate-600);
}

.btn-secondary:hover {
    border-color: var(--copper);
    color: var(--copper);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* =====================================================
   SECTION STYLES
   ===================================================== */
.section-tag {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--copper);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    color: var(--slate-900);
    line-height: 1.1;
    margin-bottom: 1rem;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--slate-600);
    max-width: 600px;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header .section-desc {
    margin: 0 auto;
}

/* =====================================================
   ABOUT SECTION
   ===================================================== */
.about {
    padding: var(--section-padding) 0;
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 4rem;
    align-items: center;
}

.about-content {
    max-width: 600px;
}

.about-text {
    color: var(--slate-600);
    margin-bottom: 1.5rem;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.feature {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: var(--slate-50);
    border-radius: 8px;
    border-left: 3px solid var(--copper);
}

.feature-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--copper);
    color: var(--white);
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: bold;
    flex-shrink: 0;
}

.feature-text strong {
    display: block;
    color: var(--slate-900);
    font-weight: 600;
}

.feature-text span {
    font-size: 0.875rem;
    color: var(--slate-500);
}

.about-visual {
    position: relative;
    height: 400px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1rem;
}

.visual-card {
    position: relative;
    width: 300px;
    height: 320px;
    background: linear-gradient(135deg, var(--slate-800), var(--slate-900));
    border-radius: 12px;
    display: flex;
    align-items: flex-end;
    padding: 2rem;
    overflow: hidden;
}

.visual-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            -45deg,
            transparent,
            transparent 10px,
            rgba(184,115,51,0.05) 10px,
            rgba(184,115,51,0.05) 20px
        );
}

.card-content {
    position: relative;
    z-index: 1;
}

.card-year {
    display: block;
    font-family: var(--font-display);
    font-size: 6rem;
    color: var(--copper);
    line-height: 1;
    opacity: 0.9;
}

.card-text {
    font-size: 1rem;
    color: var(--slate-400);
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.visual-badge {
    position: relative;
    align-self: flex-start;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: var(--copper);
    border-radius: 8px;
    box-shadow: var(--shadow-copper);
}

.badge-icon {
    font-size: 2rem;
}

.badge-text {
    font-weight: 600;
    color: var(--white);
    font-size: 0.875rem;
    line-height: 1.3;
}

/* =====================================================
   SERVICES SECTION
   ===================================================== */
.services {
    padding: var(--section-padding) 0;
    background: var(--slate-50);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.service-card {
    position: relative;
    padding: 2.5rem;
    background: var(--white);
    border-radius: 12px;
    border: 1px solid var(--slate-200);
    transition: all var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.service-card.featured {
    background: var(--slate-900);
    border-color: var(--slate-800);
}

.service-card.featured:hover {
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

.service-card.featured .service-title,
.service-card.featured .service-desc,
.service-card.featured .service-list li {
    color: var(--slate-300);
}

.service-card.featured .service-title {
    color: var(--white);
}

.service-card.featured .service-icon {
    background: rgba(184,115,51,0.2);
    color: var(--copper);
}

.service-badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    padding: 0.35rem 0.75rem;
    background: var(--copper);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 4px;
}

.service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--slate-100);
    border-radius: 12px;
    margin-bottom: 1.5rem;
    color: var(--copper);
}

.service-icon svg {
    width: 32px;
    height: 32px;
}

.service-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    color: var(--slate-900);
    margin-bottom: 1rem;
}

.service-desc {
    color: var(--slate-600);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.service-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--slate-600);
}

.service-list li::before {
    content: '→';
    color: var(--copper);
    font-weight: bold;
}

/* =====================================================
   PROJECTS SECTION
   ===================================================== */
.projects {
    padding: var(--section-padding) 0;
    background: var(--white);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 250px);
    gap: 1.5rem;
}

.project-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
}

.project-card.large {
    grid-column: span 2;
    grid-row: span 2;
}

.project-image {
    position: absolute;
    inset: 0;
    background: var(--bg, var(--slate-700));
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-image {
    transform: scale(1.05);
}

.project-placeholder {
    width: 80px;
    height: 80px;
    color: rgba(255,255,255,0.3);
}

.project-card.large .project-placeholder {
    width: 120px;
    height: 120px;
}

.project-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    transform: translateY(20px);
    opacity: 0;
    transition: all var(--transition-normal);
}

.project-card:hover .project-info {
    transform: translateY(0);
    opacity: 1;
}

.project-type {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--copper);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--white);
    margin-bottom: 0.25rem;
}

.project-card.large .project-title {
    font-size: 1.75rem;
}

.project-info p {
    font-size: 0.875rem;
    color: var(--slate-400);
}

/* =====================================================
   PHOTO GALLERY SECTION
   ===================================================== */
.gallery {
    padding: var(--section-padding) 0;
    background: var(--white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.gallery-item {
    position: relative;
    aspect-ratio: 4/3;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    background: var(--slate-200);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-icon {
    font-size: 2.5rem;
    filter: grayscale(1) brightness(10);
}

/* Placeholder pentru imagini lipsă */
.gallery-item.placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--slate-300), var(--slate-400));
}

.gallery-item.placeholder::after {
    content: '📷 Adaugă imagine';
    color: var(--slate-600);
    font-size: 0.875rem;
    text-align: center;
}

.gallery-item.placeholder img {
    display: none;
}

.gallery-item.placeholder .gallery-overlay {
    display: none;
}

.gallery-note {
    text-align: center;
    margin-top: 2rem;
    color: var(--slate-500);
    font-size: 0.875rem;
}

/* Lightbox Modal */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.95);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
    text-align: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 80vh;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.lightbox-caption {
    color: var(--white);
    margin-top: 1rem;
    font-size: 1.125rem;
}

.lightbox-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.1);
    border: none;
    border-radius: 50%;
    color: var(--white);
    font-size: 2rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-close:hover {
    background: var(--copper);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.1);
    border: none;
    border-radius: 50%;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-nav:hover {
    background: var(--copper);
}

.lightbox-prev {
    left: 1.5rem;
}

.lightbox-next {
    right: 1.5rem;
}

@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .lightbox-nav {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }
    
    .lightbox-prev {
        left: 0.5rem;
    }
    
    .lightbox-next {
        right: 0.5rem;
    }
    
    .lightbox-close {
        top: 0.5rem;
        right: 0.5rem;
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}

/* =====================================================
   CTA SECTION
   ===================================================== */
.cta {
    padding: var(--section-padding) 0;
    background: linear-gradient(135deg, var(--slate-900) 0%, var(--slate-800) 100%);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(184,115,51,0.15), transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(184,115,51,0.1), transparent 50%);
}

.cta-content {
    position: relative;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    color: var(--white);
    margin-bottom: 1rem;
}

.cta-text {
    font-size: 1.125rem;
    color: var(--slate-400);
    margin-bottom: 2rem;
}

/* =====================================================
   CONTACT SECTION
   ===================================================== */
.contact {
    padding: var(--section-padding) 0;
    background: var(--slate-50);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-desc {
    color: var(--slate-600);
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--copper);
    border-radius: 8px;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: var(--white);
}

.contact-text strong {
    display: block;
    color: var(--slate-900);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-text span {
    color: var(--slate-600);
    font-size: 0.95rem;
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--slate-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem 1rem;
    border: 2px solid var(--slate-200);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--slate-800);
    transition: all var(--transition-fast);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--copper);
    box-shadow: 0 0 0 3px rgba(184,115,51,0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--slate-400);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    grid-column: span 2;
    margin-top: 0.5rem;
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
    background: var(--slate-900);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--slate-800);
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--slate-500);
    font-size: 0.95rem;
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.footer-links ul,
.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--slate-500);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--copper);
}

.footer-contact li {
    color: var(--slate-500);
    font-size: 0.95rem;
}

.footer-contact strong {
    color: var(--slate-400);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
}

.footer-bottom p {
    color: var(--slate-600);
    font-size: 0.875rem;
}

.footer-credit {
    color: var(--copper) !important;
}

/* =====================================================
   ANIMATIONS
   ===================================================== */
@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollPulse {
    0%, 100% {
        opacity: 1;
        transform: scaleY(1);
    }
    50% {
        opacity: 0.5;
        transform: scaleY(0.8);
    }
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-visual {
        order: -1;
        height: auto;
        justify-self: center;
        align-items: center;
        width: 100%;
        max-width: 320px;
    }
    
    .visual-card {
        width: 100%;
        max-width: 280px;
        height: 280px;
    }
    
    .visual-badge {
        align-self: center;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: auto;
    }
    
    .project-card.large {
        grid-column: span 2;
        grid-row: span 1;
        min-height: 300px;
    }
    
    .project-card:not(.large) {
        min-height: 200px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        height: 100dvh; /* Dynamic viewport height for mobile browsers */
        background: var(--slate-900);
        flex-direction: column;
        justify-content: center;
        gap: 2rem;
        transition: right var(--transition-normal);
        box-shadow: var(--shadow-lg);
        -webkit-overflow-scrolling: touch;
        padding: 2rem;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-toggle {
        display: flex;
        z-index: 1001;
        /* Touch-friendly size */
        min-width: 44px;
        min-height: 44px;
        align-items: center;
        justify-content: center;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .hero {
        min-height: 100vh;
        min-height: 100dvh; /* Dynamic viewport height */
    }
    
    .hero-stats {
        gap: 2rem;
    }
    
    /* Touch-friendly buttons */
    .btn {
        min-height: 48px;
        padding: 0.875rem 1.5rem;
    }
    
    /* Touch-friendly form inputs */
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px; /* Prevents iOS zoom on focus */
        min-height: 48px;
        padding: 0.75rem 1rem;
    }
    
    /* Touch-friendly contact items */
    .contact-item {
        min-height: 48px;
    }
    
    .contact-link {
        padding: 0.75rem;
        margin: 0;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    /* About visual mobile improvements */
    .about-visual {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
        padding: 0 1rem;
    }
    
    .visual-card {
        width: 100%;
        max-width: 260px;
        height: 240px;
        padding: 1.5rem;
    }
    
    .card-year {
        font-size: 4.5rem;
    }
    
    .card-text {
        font-size: 0.875rem;
        letter-spacing: 0.15em;
    }
    
    .visual-badge {
        padding: 0.875rem 1.25rem;
    }
    
    .badge-icon {
        font-size: 1.5rem;
    }
    
    .badge-text {
        font-size: 0.8rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .project-card.large {
        grid-column: span 1;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .contact-form {
        grid-template-columns: 1fr;
    }
    
    .form-group.full-width,
    .contact-form .btn {
        grid-column: span 1;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand p {
        max-width: none;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: clamp(2.5rem, 15vw, 4rem);
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .visual-card {
        max-width: 220px;
        height: 200px;
        padding: 1.25rem;
    }
    
    .card-year {
        font-size: 3.5rem;
    }
    
    .visual-badge {
        padding: 0.75rem 1rem;
    }
    
    .contact-form-wrapper {
        padding: 1.5rem;
    }
    
    .section-title {
        font-size: clamp(2rem, 8vw, 2.5rem);
    }
    
    .service-card {
        padding: 1.5rem;
    }
    
    .contact-details {
        gap: 1rem;
    }
}

/* Extra small screens (320px) */
@media (max-width: 360px) {
    :root {
        --container-padding: 1rem;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .visual-card {
        width: 200px;
        height: 240px;
    }
    
    .card-year {
        font-size: 3rem;
    }
    
    .navbar {
        padding: 0.75rem 0;
    }
    
    .logo {
        font-size: 1.25rem;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --copper: #c97f3d;
        --slate-600: #333;
    }
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Print styles */
@media print {
    .navbar, .hero-scroll, .whatsapp-float, .nav-toggle {
        display: none !important;
    }
    
    .hero {
        min-height: auto;
        padding: 2rem 0;
    }
    
    body {
        background: white;
        color: black;
    }
}

/* =====================================================
   WHATSAPP FLOATING BUTTON & CONTACT LINKS
   ===================================================== */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    bottom: calc(2rem + env(safe-area-inset-bottom, 0px));
    right: 2rem;
    right: calc(2rem + env(safe-area-inset-right, 0px));
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-align: center;
    -webkit-align-items: center;
    align-items: center;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    -webkit-transition: all var(--transition-fast);
    transition: all var(--transition-fast);
    /* Touch-friendly size */
    min-width: 48px;
    min-height: 48px;
    -webkit-tap-highlight-color: transparent;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg {
    width: 32px;
    height: 32px;
    color: white;
}

.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    background: var(--slate-900);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.whatsapp-tooltip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: var(--slate-900);
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
}

/* Contact Links */
.contact-link {
    text-decoration: none;
    transition: all var(--transition-fast);
    border-radius: 8px;
    padding: 0.5rem;
    margin: -0.5rem;
}

.contact-link:hover {
    background: var(--slate-100);
    transform: translateX(5px);
}

.whatsapp-link .whatsapp-icon {
    background: #25D366 !important;
}

.whatsapp-link:hover {
    background: rgba(37, 211, 102, 0.1);
}

.email-link .email-icon {
    background: #EA4335 !important;
}

.email-link:hover {
    background: rgba(234, 67, 53, 0.1);
}

@media (max-width: 768px) {
    .whatsapp-float {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 55px;
        height: 55px;
    }
    
    .whatsapp-float svg {
        width: 28px;
        height: 28px;
    }
    
    .whatsapp-tooltip {
        display: none;
    }
}

/* =====================================================
   SCROLL PROGRESS BAR
   ===================================================== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(to right, var(--copper), var(--copper-light));
    z-index: 2001;
    transition: width 0.1s linear;
    box-shadow: 0 0 8px rgba(184, 115, 51, 0.6);
}

/* =====================================================
   BACK TO TOP BUTTON
   ===================================================== */
.back-to-top {
    position: fixed;
    bottom: 6rem;
    right: 2rem;
    right: calc(2rem + env(safe-area-inset-right, 0px));
    width: 48px;
    height: 48px;
    background: var(--slate-800);
    border: 1px solid var(--slate-700);
    border-radius: 50%;
    color: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
    z-index: 998;
    box-shadow: var(--shadow-md);
}

.back-to-top:hover {
    background: var(--copper);
    border-color: var(--copper);
    transform: translateY(-2px);
    box-shadow: var(--shadow-copper);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 5rem;
        right: 1.5rem;
        width: 44px;
        height: 44px;
    }
}

/* =====================================================
   LIGHTBOX COUNTER
   ===================================================== */
.lightbox-counter {
    position: absolute;
    top: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    padding: 0.35rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    white-space: nowrap;
}

/* =====================================================
   LIGHTBOX SMOOTH TRANSITIONS
   ===================================================== */
#lightboxImage {
    transition: opacity 0.25s ease;
}

#lightboxImage.fading {
    opacity: 0;
}

/* =====================================================
   GALLERY MASONRY LAYOUT
   ===================================================== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 220px;
    gap: 1.25rem;
}

.gallery-item {
    aspect-ratio: unset;
}

.gallery-item--large {
    grid-column: span 2;
    grid-row: span 2;
}

/* =====================================================
   GALLERY FOOTER & LOAD MORE
   ===================================================== */
.gallery-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.gallery-note {
    text-align: center;
    color: var(--slate-500);
    font-size: 0.875rem;
    margin-top: 0;
}

.gallery-load-more {
    padding: 0.875rem 2.5rem;
    font-size: 0.95rem;
    border-color: var(--copper);
    color: var(--copper);
    border-radius: 6px;
    transition: all var(--transition-normal);
}

.gallery-load-more:hover {
    background: var(--copper);
    color: var(--white);
    transform: translateY(-2px);
}

/* =====================================================
   SERVICE CARD IMPROVEMENTS
   ===================================================== */
.service-card {
    border-bottom: 3px solid transparent;
    transition: all var(--transition-normal), border-color var(--transition-fast);
}

.service-card:hover {
    border-bottom-color: var(--copper);
}

.service-card.featured:hover {
    border-bottom-color: var(--copper);
}

/* =====================================================
   GALLERY RESPONSIVE MASONRY
   ===================================================== */
@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 180px;
        gap: 0.875rem;
    }

    .gallery-item--large {
        grid-column: span 2;
        grid-row: span 1;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 220px;
    }

    .gallery-item--large {
        grid-column: span 1;
        grid-row: span 1;
    }
}